NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2021-06-16 810-284 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLCV - MI 543C LAPEER MI
2021-06-16 810-286 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLCV - MI 543C NORTH BRCH MI
2021-06-16 810-314 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLCV - MI 543C PORT HURON MI
2021-06-16 930-242 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F RISING SUN IN
2021-06-16 989-425 2XXX4XXX5XXX6XXX · 2 holders which blocks → ONVOY, LLCV - MI 543C MILLINGTON MI
2021-06-16 989-457 0XXX4XXX7XXX8XXX · 3 holders which blocks → ONVOY, LLCV - MI 543C OSCODA MI
2021-06-15 220-577 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H ZANESVILLE OH
2021-06-15 220-677 0XXX3XXX6XXX7XXX · 4 holders which blocks → FRACTEL, LLC 965H WILLIAMSPT OH
2021-06-15 220-877 4XXX7XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H PROSPECT OH
2021-06-15 231-294 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLCV - MI 543C FIFE LAKE MI
2021-06-15 231-364 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLCV - MI 543C NORTHPORT MI
2021-06-15 231-374 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLCV - MI 543C SHELBY MI
2021-06-15 236-465 not yet reported which blocks → TELUS 8086 North Vancouver —
2021-06-15 236-469 not yet reported which blocks → TELUS 8086 Agassiz —
2021-06-15 269-293 3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLCV - MI 543C MIDDLEVL MI
2021-06-15 269-393 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLCV - MI 543C WAYLAND MI
2021-06-15 326-688 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H BEAVERCREK OH
2021-06-15 326-699 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H BROOKVILLE OH
2021-06-15 326-732 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H ABERDEEN OH
2021-06-15 326-758 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H JAMESTOWN OH
2021-06-15 326-786 0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H DONNELSVL OH
2021-06-15 326-799 0XXX7XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H W LIBERTY OH
2021-06-15 326-842 2XXX3XXX5XXX6XXX · 4 holders which blocks → FRACTEL, LLC 965H CATAWBA OH
2021-06-15 326-899 0XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H WOODSTOCK OH
2021-06-15 326-946 0XXX1XXX3XXX4XXX6XXX · 5 holders which blocks → FRACTEL, LLC 965H PITCHIN OH
2021-06-15 337-595 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - LA 153F ABBEVILLE LA
2021-06-15 346-476 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F ARCOLA TX
2021-06-15 431-279 not yet reported which blocks → Bell Mobility 6574 Winnipeg —
2021-06-15 448-777 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H FTWALTNBCH FL
2021-06-15 448-999 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H CANTONMENT FL
2021-06-15 506-269 not yet reported which blocks → Bell Mobility Aliant 329A Moncton —
2021-06-15 548-834 not yet reported which blocks → TELUS Integrated Communications 2782 Brigden —
2021-06-15 548-835 not yet reported which blocks → TELUS Integrated Communications 2782 Port Lambton —
2021-06-15 548-836 not yet reported which blocks → TELUS Integrated Communications 2782 Sombra —
2021-06-15 616-282 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLCV - MI 543C LOWELL MI
2021-06-15 681-371 0XXX1XXX · 2 holders which blocks → ONVOY, LLC - WV 449F PIEDMONT WV
2021-06-15 681-644 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H HINTON WV
2021-06-15 681-684 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H HNTNGTNZN1 WV
2021-06-15 681-770 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H HURRICANE WV
2021-06-15 681-782 2XXX3XXX4XXX7XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H LEON WV
2021-06-15 681-788 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H MAN WV
2021-06-15 782-324 not yet reported which blocks → Bell Mobility Aliant 329A Summerside —
2021-06-15 806-751 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 DUMAS TX
2021-06-15 806-760 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 BROWNFIELD TX
2021-06-15 863-358 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E BARTOW FL
2021-06-15 906-332 2XXX3XXX which blocks → ONVOY, LLCV - MI 543C MANISTIQUE MI
2021-06-15 930-241 0XXX1XXX2XXX3XXX4XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F BUTLERVL IN
2021-06-15 984-279 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E BENSON NC
2021-06-15 986-205 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 6565 SANDPOINT ID
2021-06-14 219-278 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H CHESTERTON IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.